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<head>
<link rel='stylesheet' href='../../../js/sh/SyntaxHighlighter.css' type='text/css' />
<script src='../../../js/sh/shCore.js'></script>
<script src='../../../js/sh/shBrushJava.js'></script>
<style>
* {
font-family:Courier New,monospace;
  padding: 0;
  margin: 0;
  white-space: nowrap;
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}
.dp-highlighter {
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  overflow: visible;
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  font-size: 11px;
  font-family:Courier New,monospace;
}
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<textarea name='code' class='java:nogutter' rows='15' cols='120'>
/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.  SmartGWT is also
 * available under typical commercial license terms - see
 * http://smartclient.com/license
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */

import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.Img;
import com.smartgwt.client.widgets.Slider;
import com.smartgwt.client.widgets.events.ValueChangedEvent;
import com.smartgwt.client.widgets.events.ValueChangedHandler;

public class TranslucencySample implements EntryPoint {

    public void onModuleLoad() {
        
        final Img eyesImg = new Img("other/eyes.jpg", 360, 188);
        eyesImg.setShowEdges(true);
        
        Slider slider = new Slider("");
        slider.setMinValue(0);
        slider.setMaxValue(100);
        slider.setShowRange(false);
        slider.setShowTitle(false);
        slider.setVertical(false);
        slider.setLeft(80);
        slider.setTop(200);
        slider.setValue(100);
        slider.addValueChangedHandler(new ValueChangedHandler() {
            public void onValueChanged(ValueChangedEvent event) {
                eyesImg.setOpacity(event.getValue());
            }
        });
        
        Canvas canvas = new Canvas();
        canvas.addChild(eyesImg);
        canvas.addChild(slider);
        
        canvas.draw();
    }

}
</textarea>
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dp.SyntaxHighlighter.HighlightAll("code");
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